/* ============================================================
   /assets/site.css
   好博赛场 · 全站共享样式
   设计语言：深空蓝数据斗屏 / 斜切动势 / 框架式导航
   ============================================================ */

/* ---------- 1. Reset ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
}

h1, h2, h3, h4, h5, h6, p, ul, ol, dl, dd, figure {
  margin: 0;
  padding: 0;
}

ul, ol {
  list-style: none;
}

img {
  max-width: 100%;
  display: block;
}

a {
  text-decoration: none;
}

button {
  font: inherit;
}

/* ---------- 2. CSS 变量 ---------- */
:root {
  --bg-deep: #0A1128;
  --bg-dark: #1A1A2E;
  --bg-card: #16213E;
  --accent-orange: #FF6B35;
  --accent-green: #0FFF50;
  --accent-purple: #7B2FBE;
  --text-main: #F4F7FB;
  --text-muted: #B0B0C0;
  --line: #303B5A;
  --shadow: rgba(0, 0, 0, 0.4);
  --font-display: "Archivo Black", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: "Inter", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: "Roboto Mono", "SF Mono", ui-monospace, Consolas, monospace;
  --header-h: 76px;
  --radius: 4px;
  --slant: 0.6rem;
}

/* ---------- 3. 全局基底 ---------- */
body {
  background-color: var(--bg-deep);
  background-image:
    linear-gradient(rgba(48, 59, 90, 0.22) 1px, transparent 1px),
    linear-gradient(90deg, rgba(48, 59, 90, 0.22) 1px, transparent 1px);
  background-size: 56px 56px;
  color: var(--text-main);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}

body::before {
  content: "";
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  width: 3px;
  z-index: 1400;
  background: linear-gradient(180deg, var(--accent-green) 0%, var(--accent-orange) 60%, var(--accent-purple) 100%);
  pointer-events: none;
}

::selection {
  background: var(--accent-orange);
  color: #0A1128;
}

/* ---------- 4. 排版 ---------- */
h1, h2, h3, h4 {
  color: var(--text-main);
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.18;
}

h1 {
  font-size: clamp(2.2rem, 6vw, 4rem);
  letter-spacing: 0.01em;
  margin-bottom: 1rem;
}

h2 {
  font-size: clamp(1.45rem, 3.6vw, 2.2rem);
  margin-bottom: 0.8rem;
}

h3 {
  font-size: 1.2rem;
  margin-bottom: 0.6rem;
}

p {
  margin-bottom: 1rem;
}

a {
  color: var(--accent-purple);
}

a:hover {
  color: var(--accent-orange);
}

:focus-visible {
  outline: 2px solid var(--accent-green);
  outline-offset: 3px;
}

/* 等宽数字 */
.num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.03em;
}

/* ---------- 5. 容器与页面骨架 ---------- */
.container {
  width: 100%;
  max-width: 1400px;
  margin-inline: auto;
  padding-inline: clamp(1rem, 3vw, 2.5rem);
}

.container--narrow {
  max-width: 880px;
}

.main-content {
  min-height: 60vh;
  padding-block: clamp(1.5rem, 4vw, 3rem) clamp(3rem, 6vw, 5rem);
}

#main-content {
  scroll-margin-top: calc(var(--header-h) + 20px);
}

.page-head {
  padding: clamp(0.5rem, 2vw, 1.5rem) 0 1.2rem;
}

.page-title {
  margin-bottom: 0.7rem;
}

.page-lead {
  max-width: 62rem;
  color: var(--text-muted);
  font-size: clamp(1.02rem, 2vw, 1.18rem);
  line-height: 1.7;
}

.section {
  margin-bottom: clamp(2.5rem, 7vw, 5rem);
}

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5rem 1rem;
  border-bottom: 1px solid var(--line);
  padding-bottom: 0.8rem;
  margin-bottom: 1.8rem;
}

.section-title {
  flex: 1;
  margin: 0;
  font-size: clamp(1.4rem, 3.4vw, 2.1rem);
}

/* ---------- 6. 面包屑 ---------- */
.breadcrumb {
  margin-bottom: 1.4rem;
}

.breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.4rem;
  font-size: 0.88rem;
}

.breadcrumb-item {
  color: var(--text-muted);
}

.breadcrumb-item + .breadcrumb-item::before {
  content: "/";
  margin-right: 0.45rem;
  color: var(--line);
}

.breadcrumb-link {
  color: var(--text-main);
}

.breadcrumb-link:hover {
  color: var(--accent-orange);
}

.breadcrumb-current {
  color: var(--accent-orange);
  font-weight: 700;
}

/* ---------- 7. 跳转链接 / 阅读进度 ---------- */
.skip-link {
  position: fixed;
  top: -6rem;
  left: 1rem;
  z-index: 1600;
  padding: 0.8rem 1.4rem;
  background: var(--accent-green);
  color: #081021;
  font-weight: 800;
  font-size: 0.95rem;
  letter-spacing: 0.06em;
  clip-path: polygon(var(--slant) 0, 100% 0, calc(100% - var(--slant)) 100%, 0 100%);
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 1rem;
}

.progress-track {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  z-index: 1500;
  background: rgba(48, 59, 90, 0.35);
  pointer-events: none;
}

.progress-bar {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--accent-green), #7dffa6, var(--accent-green));
}

/* ---------- 8. 头部 / 框架式导航 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(10, 17, 40, 0.92);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}

.site-header::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 1px;
  background: linear-gradient(90deg, var(--accent-green) 0%, transparent 32%);
}

.header-frame {
  display: flex;
  align-items: center;
  gap: 0.75rem 1.25rem;
  min-height: var(--header-h);
  padding-block: 0.55rem;
}

/* 品牌 */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--text-main);
  margin-right: auto;
}

.brand:hover {
  color: var(--text-main);
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 46px;
  height: 44px;
  background: var(--accent-orange);
  color: #081021;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.2rem;
  line-height: 1;
  clip-path: polygon(8px 0, 100% 0, calc(100% - 8px) 100%, 0 100%);
}

.brand-text {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.35rem;
  letter-spacing: 0.06em;
  line-height: 1.1;
  white-space: nowrap;
}

.brand-status {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent-green);
  box-shadow: 0 0 10px rgba(15, 255, 80, 0.8);
  align-self: flex-start;
  margin-top: 0.3rem;
}

/* 导航 */
.site-nav {
  flex: 1;
  display: flex;
  justify-content: center;
}

.nav-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.4rem;
}

.nav-item {
  margin: 0;
}

.nav-link {
  position: relative;
  display: block;
  padding: 0.52rem 1.05rem;
  color: var(--text-main);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  border: 1px solid var(--line);
  background: transparent;
  border-radius: 2px;
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.nav-link:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--accent-purple);
  color: #fff;
}

.nav-link[aria-current="page"] {
  color: var(--accent-green);
  border-color: rgba(15, 255, 80, 0.55);
  background: rgba(15, 255, 80, 0.07);
}

.nav-link[aria-current="page"]::before {
  content: "";
  position: absolute;
  left: -1px;
  top: -1px;
  bottom: -1px;
  width: 3px;
  background: var(--accent-green);
}

/* 头部右侧 */
.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 0.55rem;
  padding: 0.52rem 0.9rem;
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-main);
  border: 1px solid var(--line);
  border-radius: 2px;
  cursor: pointer;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.nav-toggle:hover {
  border-color: var(--accent-orange);
  color: var(--accent-orange);
}

.nav-toggle-line {
  display: inline-flex;
  flex-direction: column;
  gap: 4px;
  width: 18px;
}

.nav-toggle-line i {
  display: block;
  width: 100%;
  height: 2px;
  background: currentColor;
  border-radius: 1px;
  transform-origin: center;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-line i:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-line i:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-line i:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

.nav-toggle-text {
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

/* 移动端导航 */
@media (max-width: 61.98rem) {
  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    z-index: 900;
    display: none;
    flex-direction: column;
    padding: 1rem;
    background: rgba(10, 17, 40, 0.98);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 18px 36px var(--shadow);
    max-height: calc(100vh - var(--header-h));
    overflow-y: auto;
  }

  .site-nav[data-open] {
    display: flex;
  }

  .nav-list {
    flex-direction: column;
    width: 100%;
    gap: 0.35rem;
  }

  .nav-link {
    padding: 0.8rem 0.95rem;
    font-size: 1rem;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .brand-text {
    font-size: 1.2rem;
  }
}

/* ---------- 9. 页脚 ---------- */
.site-footer {
  position: relative;
  background: var(--bg-dark);
  border-top: 1px solid var(--line);
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 1.1fr) minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 3rem);
  padding-block: clamp(2.4rem, 5vw, 3.8rem) clamp(1.8rem, 4vw, 3rem);
}

.footer-about .brand {
  margin-right: 0;
  margin-bottom: 0.2rem;
}

.brand--footer .brand-text {
  font-size: 1.25rem;
}

.footer-tagline {
  color: var(--accent-green);
  font-weight: 700;
  letter-spacing: 0.14em;
  font-size: 0.88rem;
  margin-top: 1rem;
}

.footer-trust {
  margin-top: 0.6rem;
  max-width: 48rem;
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.7;
}

.footer-heading {
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent-green);
  margin-bottom: 1.2rem;
}

.footer-dl {
  display: grid;
  gap: 0.85rem;
}

.footer-row {
  display: grid;
  gap: 0.1rem;
}

.footer-row dt {
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--text-muted);
  text-transform: uppercase;
}

.footer-row dd {
  margin: 0;
  color: var(--text-main);
  font-size: 0.95rem;
}

.footer-links {
  display: grid;
  gap: 0.6rem;
}

.footer-links a {
  display: inline-block;
  padding: 0.2rem 0;
  color: var(--text-muted);
  font-size: 0.95rem;
  transition: color 0.2s ease, padding-left 0.2s ease;
}

.footer-links a:hover {
  color: var(--accent-orange);
  padding-left: 0.35rem;
}

.footer-bottom {
  border-top: 1px solid rgba(48, 59, 90, 0.55);
}

.footer-bottom-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.4rem 1.5rem;
  padding-block: 1.15rem;
  color: var(--text-muted);
  font-size: 0.84rem;
}

.footer-bottom-row p {
  margin: 0;
}

.footer-accent {
  height: 3px;
  background: linear-gradient(90deg, var(--accent-green) 0%, var(--accent-purple) 48%, var(--accent-orange) 100%);
}

@media (max-width: 61.98rem) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  .footer-about {
    grid-column: 1 / -1;
  }
}

@media (max-width: 39.98rem) {
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .footer-about {
    grid-column: auto;
  }
}

/* ---------- 10. 按钮 / 徽标 / 卡片 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.72rem 1.5rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--text-main);
  background: var(--bg-card);
  border: 1px solid var(--line);
  cursor: pointer;
  user-select: none;
  clip-path: polygon(var(--slant) 0, 100% 0, calc(100% - var(--slant)) 100%, 0 100%);
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease, filter 0.2s ease;
}

.btn-solid {
  background: var(--accent-orange);
  border-color: var(--accent-orange);
  color: #081021;
}

.btn-solid:hover {
  filter: brightness(1.1);
  background: var(--accent-orange);
  color: #081021;
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.03);
}

.btn-ghost:hover {
  border-color: var(--accent-purple);
  background: rgba(123, 47, 190, 0.28);
  color: var(--text-main);
}

.btn--sm {
  padding: 0.44rem 1rem;
  font-size: 0.85rem;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.28rem 0.75rem;
  border-radius: 999px;
  background: var(--bg-card);
  border: 1px solid var(--line);
  color: var(--text-main);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  white-space: nowrap;
}

.badge::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

.badge--green {
  color: var(--accent-green);
  border-color: rgba(15, 255, 80, 0.45);
  background: rgba(15, 255, 80, 0.08);
}

.badge--orange {
  color: var(--accent-orange);
  border-color: rgba(255, 107, 53, 0.45);
  background: rgba(255, 107, 53, 0.08);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 17rem), 1fr));
  gap: clamp(1rem, 2.4vw, 1.75rem);
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 12px 28px var(--shadow);
}

.card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.1rem 1.4rem;
  border-bottom: 1px solid var(--line);
}

.card-title {
  margin: 0;
  font-size: 1.05rem;
  letter-spacing: 0.04em;
}

.card-body {
  padding: 1.4rem;
}

/* ---------- 11. 数据指标 / 状态面板 ---------- */
.kpi-group {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 9rem), 1fr));
  gap: 1rem;
}

.kpi {
  position: relative;
  padding: 1.15rem 1.25rem;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 10px 24px var(--shadow);
}

.kpi::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--accent-orange);
}

.kpi-value {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.65rem, 3.4vw, 2.4rem);
  font-weight: 800;
  line-height: 1.1;
  color: var(--text-main);
  font-variant-numeric: tabular-nums;
}

.kpi-label {
  display: block;
  margin-top: 0.35rem;
  color: var(--text-muted);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.14em;
}

.kpi--live::before {
  background: var(--accent-green);
}

.kpi--live .kpi-value {
  color: var(--accent-green);
}

/* ---------- 12. 响应式图片容器 ---------- */
.media-frame {
  position: relative;
  aspect-ratio: var(--media-ratio, 16 / 9);
  overflow: hidden;
  background: linear-gradient(120deg, #0d1830, var(--bg-card) 55%, #0d1830);
  border: 1px solid var(--line);
  border-radius: 3px;
}

.media-frame img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
}

.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 2;
  background: linear-gradient(180deg, transparent 55%, rgba(10, 17, 40, 0.72));
  pointer-events: none;
}

.media--ratio-16-9 {
  --media-ratio: 16 / 9;
}

.media--ratio-4-3 {
  --media-ratio: 4 / 3;
}

.media--ratio-3-4 {
  --media-ratio: 3 / 4;
}

.media-caption {
  position: absolute;
  left: 1rem;
  right: 1rem;
  bottom: 0.85rem;
  z-index: 3;
  color: var(--text-main);
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.6);
}

/* ---------- 13. 标签 / 纵向注释 ---------- */
.sec-label {
  display: block;
  color: var(--accent-green);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  margin-bottom: 0.8rem;
}

.vert-note {
  display: block;
  writing-mode: vertical-rl;
  max-height: 14rem;
  color: var(--text-muted);
  font-size: 0.78rem;
  letter-spacing: 0.28em;
  line-height: 1.8;
  border-left: 1px solid var(--line);
  padding-left: 0.6rem;
  text-orientation: mixed;
}

/* ---------- 14. 12 列网格 ---------- */
.grid-12 {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: clamp(1rem, 2.4vw, 2rem);
}

.col-3 {
  grid-column: span 3;
}

.col-4 {
  grid-column: span 4;
}

.col-6 {
  grid-column: span 6;
}

.col-8 {
  grid-column: span 8;
}

.col-9 {
  grid-column: span 9;
}

.col-12 {
  grid-column: span 12;
}

@media (max-width: 39.98rem) {
  .col-3,
  .col-4,
  .col-6,
  .col-8,
  .col-9 {
    grid-column: span 12;
  }
}

/* ---------- 15. 动效与无障碍 ---------- */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }

  .brand-status {
    animation: status-pulse 2.4s ease-in-out infinite;
  }

  .progress-bar {
    transition: width 0.12s linear;
  }

  .site-nav[data-open] {
    animation: nav-panel-in 0.18s ease;
  }

  html.reveal-enabled [data-reveal] {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 0.5s ease, transform 0.5s ease;
  }

  html.reveal-enabled [data-reveal][data-shown] {
    opacity: 1;
    transform: none;
  }

  @keyframes status-pulse {
    0%, 100% {
      opacity: 1;
    }
    50% {
      opacity: 0.4;
    }
  }

  @keyframes nav-panel-in {
    from {
      opacity: 0;
      transform: translateY(-4px);
    }
    to {
      opacity: 1;
      transform: none;
    }
  }
}